Finding the Fourth Proportional to 38,957,785.11, 53,763,325.97 and 21,553,846.88
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Solution
The fourth proportional to 38,957,785.11, 53,763,325.97 and 21,553,846.88 is: 29,745,184.23
Step by Step Solution
- Step 1: Write the proportion equation
38,957,785.11 : 53,763,325.97 = 21,553,846.88 : x - Step 2: Convert to fraction form
38,957,785.11/53,763,325.97 = 21,553,846.88/x - Step 3: Cross multiply
38,957,785.11x = 53,763,325.97 × 21,553,846.88 - Step 4: Simplify right side
38,957,785.11x = 1,158,806,495,340,321.75 - Step 5: Solve for x
x = 1,158,806,495,340,321.75/38,957,785.11 - Step 6: Final answer
x = 29,745,184.23
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.